Railroad-bolt.



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Patented Jan. 3, 1911.

, E' STATE s,; rATENT OFFICE,

JAMES F. NICOLS, OF EMERSON, ARKANSAS.

RAILROAD-BOLT.

T 0 all whom it may concern:

Be it known that I, JAMES F. NIooLs, a citizen of the United States, residing at Emerson, in. the county of Columbia and State of Arkansas, have invented new and useful Improvements in Railroad-Bolts, of which the following is a specification.

r This invention relatesto bolts, and is primarily directed for securing the fish plates of bolts'to the webs of the rails, and the object of the invention is to provide a device of this character which may beeasily and quickly positioned within the openings of .the rails and fish plates and which effectively locks the said plates as well as the bolt upon the rails thereby obviating the liability of accident due to the loosening of the nut through the pounding of the rolling stock'passing over the rails and the consequent disconnection of the bolt and nut.

With the above, and other objects in view, which willappear as the description progresses, the invention resides in the novel construction and combination of elements hereinafter fully described and claimed.

In the accompanying drawings there has been illustrated a simple and preferred embodiment of theimprovement, and in which drawings,

-Figure 1,

is a transverse sectional view of a rail and fish plate, showing my improved bolt in applied position, the sleeve of the boltbeingjsectioned. Fig. 2 is a view in perspective of the bolt. Fig. 3,-is a similar view of the sleeve. Fig. 4, is'an elevation, partly insection of a modification.

I In the accompanying drawing the numeral l designates the meeting ends of a pair of rails and with the rails.

noted that the bolt 3 is provided with a head-4 and a threaded port1on;5. The body of the bolt is beveled as clearly illustrated 1 in the said Fig." 2 andth'e outer extremity of the boltis slit a suitable ,distance'longitudinally as designated by the numeral 6 to provide a pair of fingers-7.

he numeral 8 designates the sleevewhich cooperates with the, bolt 3.

This sleeve is .provided withan enlarged head '9 the same Specification of Letters Patent. Application filed January 14, 1910. Serial No. 538,129.

2- the-fish plate connected j The webs of the rails and the fish plates are provided with the usual .alining openings, and the numeral 3 desighaving a transversely arranged depressed portion 10 the purpose of which will presently be apparent. The sleeve 8 is also provided with an inclined bore 11 corresponding with the beveled portion of the bolt 3.

\Vhen the device is to be applied as illustrated. in Fi .1 of the drawings, the sleeve is first inserte within the openings provided by the fish plates and webs of the rails. The bolt 3 is then inserted within the bore 11 of the sleeve 8 and the sleeve is rotated upon the said bore until its threaded portion en- "gages the threads 5 so'as to bring the enlarged heads 4 and 9 of the member tightly against the opposite vfish plates. en this is accomplished the fingers 7 of the bolt 3 are bent in' an opposite direction into engagement with the depressions 10 of the head 9 of the sleeve 8, as clearly illustrated in Fig. 1 of the drawings, thus securely and efi'ectively connecting the members 8 and 3.

In Fig. 4 I have illustrated a sli htly modified form of the device. 'In this ed and provided with a longitudinal centrally arranged slit so as to form the fingers 7. The numeral 13 designates a suitable nut adapted for engagement with the threaded portion of the bolt 3., and when the nut is screwed homd upon the bolt 3, the fingers 7. are bent inopposite directions so as to engage within a channel 14 provided upon the outer face of thenut 13.

From theabove description, taken in con-- nection with the accompanying drawings, it will be noted that I have provided an ext remely'simple and efiective device for the purpose intended, and while I have illustrated and described the preferred embodiment of the improvement, as it now appears to me, minor det-alls of. constructlon within the scope of the following claims may be re- 7 sorted to if desired.

Having thus describedthe invention, what I claim as new is L. In a device for the purpose set forth, a'

Patented Jan. 3, 1911.

figure the bolt member 3' has its extremity threadbolt "having an enlarged head and a coneshaped extension, said extension being centrally slotted to provide oppositely disposed fingers, an elongated sleeve having an 'en-' larged head provided v with .a transverse groove, said. sleeve being provided with a bore ta ering from its outer end toward its head a apted to' engage the cone-shaped ex-- tension'of the bolt, and the fingers of the said extension adapted to be received within the transverse groove of the head of the sleeve.

2. In a device for the purpose set forth, a bolt having an enlarged head and being provided with a threaded portion adjacent its 'head, the bolt being further provided with a cone-shaped extenslon, the said extension being centrally slitted to provide oppositely disposed fingers, a sleeve, said sleeve being provided with .a cone-shaped borehaving threads adapted to engage the threads of the bolt, the sleeve being also provided with an enlarged head, the said headhaving a transverse groove adapted for the reception of the fingers of the bolt when the latter are bent, substantially as described.

In testimony whereof I afilx my signature in presence of two Witnesses.

JAMES F. NICOLS. 

